Take a fishing rod and go fishing. Be silent with the fish for an hour or two, and you may catch an old shoe. You may even catch a little gold fish that will ask you to set him free and then grant you three wishes. What do you care? At least, you spent two hours at the beach, which is already something to be grateful for.
Do you remember the days when we went to the beach without worrying about high SPF sunscreen, had steaks without counting bad cholesterol, and cigarettes were sold in packs that didn't have warnings on them. I guess in the old days everything was really much simpler.